instructor: Selvaraj Kandasamy
Email: selvaraj@xmu.edu.cn
Project title: Glacial-interglacial variations in biogenic silica and organic carbon accumulation rates in the eastern equatorial Indian Ocean
Project description:
Oceanic silica cycle is tightly linked with the carbon cycle, especially along the coastal and equatorial upwelling regions and other high productivity areas, on glacial-interglacial timescales. Estimation of carbon burial in the eastern equatorial Indian Ocean, in particular areas off Sumatra and Java, has been suggested to hold between 0.1% and 7.1% of the global annual carbon burial. Nonetheless, the role of biogenic silica productivity and its relation to carbon burial in this region on millennial timescale is unknown. Under this project, we will investigate biogenic silica and organic carbon in two sediment cores from the eastern equatorial Indian Ocean to understand the link between their accumulation rates and mechanisms responsible for their variations over the past 35 thousand years.
Requirement for students
Student numbers: 2
Background: Marine Geology/Marine Chemistry
Skills: hard-working and interests in learning the laboratory work
指導教師：Selvaraj Kandasamy
郵箱：selvaraj@xmu.edu.cn
項目名稱：赤道東印度洋冰期-間冰期生源硅和有機碳累積速率變化
項目描述：
海洋硅循環和碳循環在冰期-間冰期時間尺度上緊密相關，且在沿岸上升流、赤道上升流及其他高生產力海域中相關性尤為明顯。研究表明，赤道東印度洋的碳埋藏量，尤其是蘇門答臘島和爪哇島以南，約占全球年均碳埋藏量的0.1%到7.1%。然而，目前人們對該海域千年尺度上生源硅生產量與碳埋藏的關系卻知之甚少。本研究擬分析赤道東印度洋海域兩個柱狀沉積物中的生源硅與有機碳含量，試圖了解兩者累積速率的關系并闡釋其在過去35000年的變化機制。
學生要求
數量：2名
背景：海洋地質/海洋化學
技能：努力工作，對實驗室工作感興趣
